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In the A.P. 1,\ 7,\ 13 ,\ 19 ,\ dot,\...

In the A.P. `1,\ 7,\ 13 ,\ 19 ,\ dot,\ 415` prove that the sum of the middle terms is equal to the sum of first and last terms.

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RD SHARMA-ARITHMETIC PROGRESSIONS-All Questions
  1. Which term of the sequence 4,\ 9,\ 14 ,\ 19 ,\ dot is 124?

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  2. Find the middle term(s) of the A.P. 7,\ 13 ,\ 19 ,\ ddot,\ 241 .

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  3. In the A.P. 1,\ 7,\ 13 ,\ 19 ,\ dot,\ 415 prove that the sum of ...

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  4. Which term of the arithmetic progression 5,\ 15 ,\ 25 ,\ dot will b...

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  5. Which term of the sequence 20 ,\ \ 19 1/4,\ \ 18 1/2,\ \ 17 3/4,\ d...

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  6. The 10 t h term of an A.P. is 52 and 16 t h term is 82. Find the...

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  7. Determine the general term of an A.P. whose 7t h term is -1 and 16 ...

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  8. If five times the fifth term of an A.P. is equal to 8 times its eig...

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  9. Which term of the A.P. 3,\ 15 ,\ 27 ,\ 39 ,\ will be 132 more t...

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  10. Two A.P.s have the same common difference. The first term of one of ...

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  11. A sum of Rs 1000 is invested at 8% simple interest per annum. Calcu...

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  12. In a flower bed there are 23 rose plants in the first row, twenty o...

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  13. Suba Rao started work in 1995 at an annual salary of Rs 5000 and re...

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  14. Jasleen saved Rs 5 in the first week of the year and then increased...

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  15. Find 10 t h term of the A.P. 1,\ 4,\ 7,\ 10 ,\ ddot

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  16. Find: 18th term of the A.P. sqrt(2),\ 3sqrt(2),\ 5sqrt(2) ddot

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  17. Find n t h term of the A.P. 13 ,\ 8,\ 3,\ -2,\ dot

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  18. Find 10 t h term of the A.P. -40 ,\ -15 ,\ 10 ,\ 35 ,\

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  19. Find 8t h term of the A.P. 117 ,\ 104 ,\ 91 ,\ 78 ,\

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  20. Find 11 t h term of the A.P. 10. 0 ,\ 10. 5 ,\ 11. 0 ,\ 11. 5 ,\ dd...

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